Electrical cut-out device.



v R.' P. JACKSON. BLECTBIQAL GUT-OUT DEVICE.

APPLIOATION FILED HAB. 3, 1906.

`l4Patented Aug. 16,Y 1910.

2 sums-SHEET 1'.

wnNEssEs:

R. P. JACKSON. I BLEUTRIGAL GUT-GUT DEVICE.

APPLIUATION FILED MAR. s, 1906.

967,388, Patented Aug. 16, 1910.

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nummnu Z7 W INV NTOR ATTORNEY UNITED sTaTEs PATENT oEEicE.

Y Pi GXSON, 0F WILKINSBURG, PENNSYLVANIA, ASSIGNOR TO WESTINGHOUSE mmc IANFACTURING COMPANY, A CORPORATION- OF PENNSYLVANIA.

ELECTRICAL concur DEVICE.

Specification of Letters Patent.

'Application ined March s, 190s. serial ne. 304,023. 'fl

To all whom. fit may concern:

Be it known that I, RAY P. JACKSON, a citizen of the United States, and a resident of VVilkinsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and usefull Improvement in Electrical Cut-Out Devices, of which the following is a specification. f

My invention relates to cutout devices for electrical circuits and it has for its object to provide a novel and improved structure for a combined manually and automatically operated cutout device.

It is a usual practice to'provide means whereby electrical devices may be manually.

connected to and disconnected from a supply circuit and also means lwhereby they may bev disconnected automatically upon the occurrence of predetermined conditions, and such means have heretofore been combined ina single device.

In the present ap lication I proposeto removably mount a use between apair of terminals that are carried in an insulating casing and to removably support the terminals `in a pair of yielding jaws that form the `terminals of a circuit, the insulating casing serving to inclose alleof the parts and to thereby protect adjacent parts from in juries that might be caused by the destruction of the fuse.

Figure 1 ofthe accompanying drawings is a plan view, of a device that is constructed in accordance with my invention and Fig. 2 is a view, in side elevationA of'the device shown in Fig. 1. Fig. 3 isa sectional view taken on 'line III-III of Fig. 2, and Fig. 4

is a sectionalview taken on line IV-IV of l. A fuse 1 that may be of any standard or usual form, is engaged at its ends and is supported by yielding jaws 2 and 3, each of which may comprise a pair oresilient conducting plates 4 and 5, that are separated at one end by means of a spacing strip 6. The jaws 2 and 3 are mounted with their open ends projecting inwardly at opposite ends of an insulating casing 7 that comprises a pair of side piecesS and 9 between whichr the jaws are secured by 'means of rivets 10, spacing blocks 11 and 12 being placed on both sidesof the jaws between the same and the side pieces 8 and 9.

Theclosed end of the jaw 2 is secured in position along one ofthe longer edges of the side pieces 8 and 9 by means of the rivets 10,

while the aws 3' are riveted across one end of the casing, the opposite end of the casing being closed by means of an insulating piece 13. The greater portion of the side of the casing along which the .jaws 2 are secured is covered by means of a plate 14 that may be fastened to the side piece by means of screws l5, a portion of the side being left open at 16 to permit of the escape of the fumes that are caused by the destruction of the fuse. The jaws 2 and 3 are engaged, respectively,l by another pair of jaws 17 and 18 that may Patented Aug. 16, 1910.

be the terminals of an electrical circuit and that are adapted to be inserted in the open side of the casing 7 so as to be inclosed thereby. Since the fuse is mounted in the jaws that are carried by the casing, the circuitmay be opened manually by simply removing the casing, and if the circuit is opened automatica ly by the destruction of the fuse, another fuse may be readily placed inA position. The casing incloses the conducting parts of the device and prevents injury thereto and it also contines the fumes and gases that result from the destruction of the fuse and causes them to be discharged through the opening 16 that may be sq located as to direct the fumes away from adjacent parts that might be injured or disturbed thereby.

I claim as my ionvention:

1. The combination with stationary terminal pieces, of fuse-holding terminal pieces, a fuse mounted in the fuse-holding terminal pieces, and an insulating box or casing the bottom of which is open and the Vsides of which support'the fuse-holding terminal pieces.

2. The combination with stationary terminal jaws, of a fuse, fuse-holding jaws. to receive the ends of the fuse, and an insulating box or casing having an openingin its top adjacent to one end and having a completely open bottom, the fuse-holding jaws being fastened to the sides of the box or casing.

3. The combination with a box or casing having an open bottom and a partially open top, and inwardly projecting fuse-holding jaws clamped between its sides, of stationary terminal jaws which project into the box or casing and engage the fuse-holding jaws, and a fuse the ends of which are clamped between the fuse-holding jaws.

4. The combination with a box or casing having 'an opening in its top and a complete'ly open bott0m\ and having fuse-holdingI jaws clamped between its sides, of a pair of stationary terminal jaws projecting into the box or casing through 1ts open bot-- tomto engage the yfuse-holding jaws, and a fuse the ends of which are clamped between the fuse-holding jaws.

tively, and having fuse-holding ,terminals clamped' between its sides to ld',the ends of a fuse and make detachable 'engagement with the stationary terminals.

In testimony whereof, I have hereunto subscribed my name this 24th day of February, 1906.

RAY P. JACKSON.

Witnesses.:

R. B. INGRAM, BIRNEY HINES. 

